Watch List notes:

South Africa, Standard Bank of British South Africa Limited, four pounds, 18-, front and back proofs on paper, mounted on card, stamped 'Specimen, Waterlow & Sons Ltd, Banknote Engravers', No. 46 in margin on back (Hern 389; Pick S579p1, p2, for type), light water staining on card, some foxing, good extremely fine to about uncirculated, rare (£3500-4000)